English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Objectives : The purpose of this study was to investigate the effect of no n-thermal atmospheric pressure plasma jet(NTAPPJ) on surface properties and Streptococcus mutans disinfection of denture base resin. Methods : Self-cured denture base resin (Jet denture repair resin, Lan g dental Mfg, co., USA) was used to make specimen(12 mm × 2 mm). To observe surface cha nge before and after plasma process, surface roughness and contact angle were measured. For sterilization experiments, the surfaces of specimens were treated with nitrogen and air NTAPPJ for 1 minute after S. mutans was inoculated on the material surfaces. Corresponding Author Kyoung-Nam KimDepartment and Research Instituteof Dental Biomaterials and BioengineeringYonsei University, 50-1 Yonsei-roSeodaemun-gu, Seoul 120-752, Korea.Tel : +82-2-2228-3081Fax : +82-2-364-9961E-mail : kimkn@yuhs.ac.krResults : Before plasma process, surface roughness of denture base res in was 0.21 ㎛ ± 0.02 ㎛. After air and nitrogen NTAPPJ process, surface roughness was 0.19 ㎛ ± 0.03 ㎛ and 0.18 ㎛ ± 0.01 ㎛ respectively. There was no significant difference(p> 0.05). Contact angle of control group without plasma process was 83.81  ± 3.14, while after plasma treatment, contact angles of air NTAPPJ and nitrogen NTAPPJ groups were 63.29  ± 2.27 and 46.68 ± 5.82 respectively. The result showed a significant decrease in contact angle after plasma process(p<0.05). Compared to the control group 6020.33(CFU/mL) without plasma process, CF U decreased significantly after air NTAPPJ 90.75(CFU/mL) and nitrogen NTAPPJ 80.25(CFU/mL) trea tment(p<0.05).Conclusions : It was considered that NTAPPJ can be used for denture disinf ection without changing surface properties of materials.Key Words : denture base resin, disinfection, non-thermal atmospheric pressure plasma : ,  ,

Effect of non-thermal atmospheric pressure nitrogen and air plasma on the surface properties and the disinfection of denture base resin